WO2010025997A1 - Systèmes et procédé pour fournir des services de communication mobile à large bande en vol - Google Patents

Systèmes et procédé pour fournir des services de communication mobile à large bande en vol Download PDF

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Publication number
WO2010025997A1
WO2010025997A1 PCT/EP2009/059465 EP2009059465W WO2010025997A1 WO 2010025997 A1 WO2010025997 A1 WO 2010025997A1 EP 2009059465 W EP2009059465 W EP 2009059465W WO 2010025997 A1 WO2010025997 A1 WO 2010025997A1
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WO
WIPO (PCT)
Prior art keywords
airplane
ground
communication system
antenna
base station
Prior art date
Application number
PCT/EP2009/059465
Other languages
English (en)
Inventor
Michael Ohm
Thorsten Wild
Michael Schmidt
Original Assignee
Alcatel Lucent
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Lucent filed Critical Alcatel Lucent
Priority to US13/002,185 priority Critical patent/US8848605B2/en
Priority to JP2011525484A priority patent/JP2012502527A/ja
Priority to BRPI0913905A priority patent/BRPI0913905A2/pt
Priority to CN200980125521.7A priority patent/CN102077490B/zh
Publication of WO2010025997A1 publication Critical patent/WO2010025997A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18502—Airborne stations
    • H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Definitions

  • the invention relates to a ground-based wireless cellular communication system, to an airplane equipment being adapted to provide in-flight broadband mobile communication services, as well as to a corresponding method.
  • the invention also relates to a communication system comprising such a ground- based wireless cellular communication system and at least one such airplane equipment.
  • spectrum efficiency in the ground-to-air and air-to-ground communication should be high to offer real broadband services and to keep the number of ground-based base stations and/or required transmission resources (e.g. licensed spectrum) low while serving a large number of airplanes at the same time.
  • airplane passengers should be enabled to use their own regular communication devices (phones, laptop cards, etc.) for performing the broadband communication.
  • a satellite-based system may be used, relying on communication with satellites in geostationary orbits.
  • a system is expensive and typically has very high latency, thus having a negative impact on service quality.
  • existing L- band solutions do not offer the capacity required for upcoming air traffic demands.
  • a better solution would be a ground-based cellular system that uses base station antennas with broad main lobes in the antenna characteristics to cover large portions of the sky.
  • the multiple-access scheme for serving a number of airplanes would be a time-division multiple-access (TDMA) scheme, or a frequency-division multiple-access (FDMA) scheme, or a combination of both.
  • TDMA time-division multiple-access
  • FDMA frequency-division multiple-access
  • these multiple-access schemes do not account for the spatial separation of the served airplanes within one cell. Thus, these schemes do not reach the theoretically possible spectrum efficiency.
  • ground-based wireless cellular communication system for providing in-flight broadband mobile communication services, comprising: at least one ground-based base station adapted for generating at least one cell defining a solid angle of the space surrounding the base station, the ground-based base station further comprising at least one antenna array using two-dimensional-beamforming for generating at least one beam for serving at least one airplane in the space covered by the at least one cell using spatial-division multiple access, SDMA.
  • the inventive ground-based communication system makes use of the spatial separation of the served airplanes by using two-dimensional beamforming at the ground-based base stations.
  • the term "two-dimensional beamforming” refers to beamforming in two out of the three spherical coordinates, i.e. in the azimuth and elevation direction, whereas conventional (one-dimensional) beamforming is restricted to only one spherical coordinate (azimuth).
  • two-dimensional beamforming enables spatial-division multiple-access (SDMA), i.e. spatial reuse of the available transmission resources within one cell, improving the average as well as the peak data throughput per cell.
  • SDMA spatial-division multiple-access
  • the two-dimensional beamforming leads to a beamforming gain for the receiver signal-to-noise-and- interference ratio (SINR) in both the ground-to-air and air-to-ground direction, and the data throughputs of the individual links are also improved.
  • SINR receiver signal-to-noise-and- interference ratio
  • the basis of the ground-based mobile communication system is given by a set of base stations of the type described above spread over the service area. Each base station may serve several sectors (cells) of the space above and around it defined by some solid angle. Such an arrangement is very similar to common cellular mobile communication systems (e.g. GSM, UMTS, LTE), where however the mobile users are more or less distributed on a surface compared to the mobile users (airplanes) of the present communication system which are distributed in three-dimensional space.
  • GSM Global System for Mobile Communications
  • the ground-based base station is adapted to form beams, in particular adaptive beams, for tracking the current position of the airplanes.
  • beams in particular adaptive beams
  • airplane-specific adaptive beams are the preferred beamforming technique.
  • a two-dimensional grid-of-beams technique where one momentarily preferred beam out of a predefined set of available beams is repeatedly selected is also possible for tracking the airplane's current position. In any case, it can be assured that each beam is directed only to the airplane which has to be served.
  • the system comprises a gateway for connection to a core (computer) network, such as the internet.
  • the base stations are connected to each other or to controllers for backhauling of data and signaling.
  • the base stations or the controllers should further be connected to the core network by some gateway for providing broadband access. Again, this is very similar to common cellular mobile communication systems.
  • the ground-based wireless cellular communication system may be a network using a dedicated infrastructure, or may be an overlay network of an existing ground-based cellular network, in the latter case not all of the ground-based base stations of the system being necessarily adapted to perform two-dimensional beamforming.
  • a conventional cellular network technology such as WiMAX or LTE may be provided with a number of base stations / antenna arrays having two-dimensional beamforming capability, the base stations being arranged e.g. only at specific locations of the network, each of these "enabled" base stations covering a large radius (cell size) of e.g. 150 km, the other base stations having a cell size of e.g. 1 to 5 km.
  • a further aspect is implemented in an airplane equipment for providing in-flight broadband mobile communication services, comprising: at least one antenna for exchange of user data with a ground-based wireless cellular communication system, in particular of the type described above, a transceiver unit connected to the at least one antenna for handling the air-to-ground and ground-to-air communication with the ground-based wireless cellular communication system, an inside-airplane communication system, in particular of a wireless type, for distributing the user data to and from terminals within the airplane, and an inter-communication unit for communication between the transceiver unit and the inside-airplane communication system.
  • Such an airplane equipment may be used for performing the task of distributing the user data of the ground-to-air and air-to-ground communication to the terminals (used e.g. by passengers) within the airplane.
  • an inside-airplane wireless communication system is of advantage, but not required.
  • a wire-line communication system may be sufficient.
  • the type of in- cabin distribution system does not have an influence on the communication with the ground-based communication system.
  • the antenna for handling the communication with the ground- based wireless cellular communication system is typically adapted to both transm it and receive data over the air-to-ground and ground-to-air link, respectively.
  • the wireless communication system with which the airplane equipment, respectively the antenna, is adapted to communicate need not necessarily be adapted for performing two-dimensional beamforming; in fact, the ground-based wireless communication system may not be adapted for performing beamforming at all .
  • the ground-based communication system with which the airplane equipment communicates may be based on a conventional cellular network technology such as WiMAX or LTE, preferably being adapted for performing one-dimensional beamforming.
  • the at least one antenna is arranged outside of a (typically conductive) h u l l of t h e a i rp l a n e , a n d th e i n s i d e-airplane wireless communication system is arranged inside the hull of the airplane.
  • a communication system inside the aircraft may comprise at least one further antenna being arranged inside of the hull of the aircraft.
  • the antenna for the exchange of user data with the ground-based wireless cellular system is a mechanically steered directive anten na or a two-dimensional beamforming antenna array adapted for automatic tracking of the ground-based base stations.
  • the antenna may be implemented as a mechanically steered directive antenna with high antenna gain, providing automatic tracking of the serving ground-based base stations, or as a two-dimensional beamforming antenna array providing beamforming gain and automatic tracking of the ground base stations. The latter approach may be preferred if more than one ground-based base station shall be monitored for e.g. handover measurements.
  • a first mechanically steered directive antenna with high antenna gain and with automatic tracking of the serving grou nd base station may be complemented by a second mechanically steered directive antenna with high antenna gain and with automatic tracking of the ground base station selected for a handover.
  • the antenna may alternatively be implemented as a simple non-directive antenna with only low antenna gain, as the two-dimensional beamforming at the ground-based base station antenna array provides enough gain. The latter approach may be preferred if more than one ground-based base station shall be monitored for e.g. handover measurements.
  • the inside-airplane communication system is a cellular system which comprises at least one airborne base station for generating a (pico) cell inside the airplane.
  • the data exchanged between the ground-based base stations and the mobile airplane transceiver unit may consist of multiplexed data for the terminals inside the airplane and of signaling both related to the terminals and to the airplane transceiver units.
  • the key point is that the data carried on the ground-to-air and air-to-ground links is a multiplex of the data for the individual users (passengers, crew, etc.) inside the airplane, i.e., inside the airplane, the user data has to be de-multiplexed and distributed to the terminals using the inside-airplane communication system.
  • the inside-airplane cellular wireless communication system is compatible with at least one communication standard of the (mobile) passenger, crew and/or airline operational terminals, in particular selected from the group consisting of: GSM, UMTS, and LTE.
  • GSM Global System for Mobile communications
  • UMTS Universal Mobile Telecommunications
  • LTE Long Term Evolution
  • the inside-airplane wireless communication system is a non-cellular wireless communication system, in particular a WLAN system.
  • the data is distributed to and from the terminals in a potentially unlicensed spectrum such as the WLAN spectrum.
  • the inside-airplane wireless communication system comprises a plurality of airplane operator-owned terminals being installed inside the airplane.
  • broadband services can be offered to the pas- sengers or the crew by means of the airplane operator-owned terminals installed inside the airplane.
  • Such terminals may for example be integrated into the airplane seats as part of the airplane entertainment system.
  • the inside-airplane wireless communication system comprises a relay station
  • the (mobile) passenger terminals are directly connected to the ground-based base station-based macro cell via a relay station, with one hop going from the ground-based base station to a relay antenna outside of the conductive hull of the airplane, a wired connection into the (conductive) hull and another hop from an antenna inside the conductive hull to the terminals and vice versa.
  • This relay may also use signal-processing techniques in order to improve the signal quality, as standard terminals may not be able to cope with high Doppler frequencies, stemming from velocities of e.g. 900 km/h.
  • the airplane equipment is adapted for performing Doppler compensation and/or frequency translation of the signals received and transmitted by the at least one antenna, preferably using airplane movement data, in particular provided by a GPS receiver or a navigation system of the airplane.
  • the airplane equipment receives the data and has two options: a) Receiving, Doppler estimation, Doppler compensation, potentially frequency translation, amplifying and forwarding to the relay-to-terminal hop, or b) receiving, complete decoding, including the above-mentioned Doppler estimation and Doppler compensation plus re-encoding, potentially frequency translation, amplifying, and forwarding to the relay-to-terminal hop.
  • the relay again has two options: a) Receiving, Doppler Pre-compensation (e.g.
  • a frequency translation may be required if the ground-to-air / air-to-ground link and the in-cabin link use two different center frequencies (which may be the case in some actual implementations). However, frequency translation is not required if the air-to-ground / ground-to-air link and the in-cabin link use the same center frequencies.
  • the inside-airplane wireless communication system may be adapted to use airplane movement data, preferably provided by a GPS receiver or by a navigation system of the airplane.
  • the airplane equipment is adapted to retrieve airplane movement data such as course, speed, etc. from devices storing this information inside the airplane.
  • the airplane movement data may also be of interest for the ground-based wireless communication system and thus may be transmitted from the airborne wireless communication system to the ground-based wireless communication system using the air-to-ground link.
  • the airplane movement data thus provided may be very interesting at least for the following tasks: signal processing, e.g. Doppler compensation either at the transmitter or receiver (both in the ground-to-air and in the air-to-ground link, Doppler compensation is either pre-compensation or post compensation); two- dimensional beamforming and tracking of the ground-based base stations (air- to-ground link) or the airplanes (ground-to-air link), and, last but not least, for implementing handover mechanisms.
  • signal processing e.g. Doppler compensation either at the transmitter or receiver (both in the ground-to-air and in the air-to-ground link, Doppler compensation is either pre-compensation or post compensation
  • two- dimensional beamforming and tracking of the ground-based base stations air- to-ground link
  • the airplanes ground-to-air link
  • a further aspect of the invention relates to a communication system comprising a combination of a ground-based wireless cellular communication system as described above and at least one airplane equipment as described above.
  • a communication system allows to provide in-flight broadband mobile communication services to airplanes in a cost-effective way.
  • the ground-based base stations and the transceiver units are adapted to exchange multiplexed user data.
  • the inside- airplane wireless communication system is adapted for distributing the user data to the individual terminals by using appropriate signaling and de- multiplexing of the user data.
  • a further aspect of the invention is implemented in a method for providing inflight broadband mobile communication services, comprising: using two-dimen- sional-beamforming in an antenna element array of a ground-based base station to generate at least one beam for serving at least one airplane in the space covered by at least one cell of the base station using spatial-division multiple access, SDMA.
  • the two-dimensional beamforming of the inventive method leads to a beamforming gain for the receiver signal-to-noise-and- interference ratio (SINR) in both the ground-to-air and air-to-ground direction, and the data throughputs of the individual links are also improved.
  • SINR receiver signal-to-noise-and- interference ratio
  • inventive method of providing the two-dimensional beamforming may be implemented in a computer program product, the latter being a suitable software or hardware, in particular a field programmable gate array (FPGA) or an application-specific integrated circuit (ASIC) or a digital signal processor (DSP).
  • FPGA field programmable gate array
  • ASIC application-specific integrated circuit
  • DSP digital signal processor
  • Fig. 1 shows a schematic diagram of an embodiment of a ground-based communication system using two-dimensional beamforming
  • Fig. 2 shows an embodiment of an airplane equipment for broadband communication between a ground-based base station and an inside-airplane distribution system.
  • Fig. 1 shows a ground-based base station 2 of a ground-based wireless cellular communication system 1 a.
  • the ground-based base station 2 may be con nected to further base stations (not shown ) of the g round-based communication system 1 a which spread over the service area of the ground- based communication system 1 a.
  • the base stations are interconnected or connected to controllers for backhauling of data and signaling.
  • the ground-based base station 2 is connected to a core (computer) network 3 by a gateway 4.
  • the ground-based communication system 1 a is very similar to common cellular mobile communication systems.
  • a voice network for voice traffic may be provided instead of a computer network for data traffic.
  • voice communications may be treated as data, for example when using Voice over IP.
  • the ground-based wireless communication system 1 a differs from conventional cellular mobile communication systems in that the base station 2 comprises two antenna element arrays 5a, 5b which are capable of two- dimensional beamfornning.
  • the antenna element arrays 5a, 5b are arranged both vertically and horizontally, whereas conventional antenna element arrays are typically vertically stacked, such that complex antenna weights can only be applied to a complete vertical antenna element stack, allowing beamforming only in the azimuth direction.
  • the antenna element arrays 5a, 5b allow for two-dimensional beamforming both in the azimuth and elevation direction of a spherical coordinate system.
  • Each antenna array 5a, 5b serves a cell C1 , C2 (i.e. a sector) of the base station 2, the cells C1 , C2 defining non-overlapping solid angles of the space surrounding the base station 2.
  • the cell size i.e. the radius of the cells C1 , C2 may be of the order of 50 km or more.
  • the base station 2 is adapted to perform signal processing algorithms using antenna weights in order to form beams 6a-c, 7a-c which are directed into the azimuth and elevation directions of served airplanes 8a-e, the base station 2 being further adapted to perform SDMA scheduling algorithms in order to take advantage of the spatial separation of the airplanes 8a-e.
  • the airplanes 8a-c are all served in cell C1 on the same time/frequency resources, but on different non-interfering airplane specific beams 6a-c (space resources).
  • the airplanes 8c-d are served on the same time/frequency resources but again on different non- interfering airplane-specific beams 7a-7c.
  • the third airplane 8c is served by both cells C1 and C2, as it is in a handover state between both cells C1 , C2.
  • the scheduling algorithm of the base station 2 may also use conventional Time Division Multiple Access or Frequency Division Multiple Access for an optimal resource usage.
  • the beams 6a-c, 7a-c are formed in such a way that they track the current positions of the airplanes 8a-c.
  • the tracking may be performed by generating airplane-specific adaptive beams 6a-c, 7a-c using (complex) antenna weights which are dynamically adapted to the position of the airplanes 8a-e.
  • a two-dimensional grid-of-beams technique where one momentarily preferred beam out of a pre-defined set of available (fixed) beams is selected in dependence of the position of the served airplane 8a-e may also be applied.
  • the airplane 8a comprises an airplane equipment 1 b having a transmit and receive antenna 9 which is implemented as a mechanically steered directive antenna adapted for generating a directed beam 10 which automatically tracks the ground-based base station C1.
  • a transmit and receive antenna 9 which is implemented as a mechanically steered directive antenna adapted for generating a directed beam 10 which automatically tracks the ground-based base station C1.
  • two mechanically steered antennas or another two-dimensional beamforming antenna array may be used, which is particularly useful when a handover between two base stations has to be performed.
  • a simple non-directive transmit and receive antenna 9 with only low antenna gain may be used, in case that the two-dimensional transmit and receive beamforming of the antenna array 5a of the ground-based base station 2 provides sufficient gain.
  • the airplane equipment 1 b further comprises a transceiver unit 11 connected to the transmit and receive antenna 9 for handling the air-to-ground and ground-to-air communication with the base station 2 of the ground-based wireless cellular communication system 1 a of Fig. 1 .
  • the airplane equipment 1 b comprises an inside-airplane communication system 12 for distributing the user data to and from passenger terminals 13a-c within the airplane 8a, as well as an inter-communication unit 14 for communication between the transceiver unit 1 1 and an airborne base station 15 of the inside- airplane wireless communication system 12.
  • the airborne base station 15 is connected to a inside-airplane antenna 16 for transmission of user and signaling data to and from the mobile passenger terminals 13a-c.
  • wire-line distribution may also be used, e.g. for terminals used by the crew or by operational services.
  • the receive and transmit antenna 9 and the transceiver unit 1 1 are arranged outside of a hull 17 of the airplane 8a, whereas the base station 15 an the further antenna 16 of the inside-airplane distribution system 12 are arranged inside the (possibly not fully conductive) hull 17 of the airplane 8a.
  • both wireless systems may be separated by using two different frequency ranges for the inside-airplane communication system 12 and the Air-to-
  • the airplane equipment 1 b in particular the inter-communication unit 14, may be adapted for performing a frequency translation between the center frequencies of the different systems.
  • the transceiver unit 1 1 , the airborne base station 15 and the inter-communication unit 14 are co-located within one common box, forming the airplane equipment 1 b together with the antennas 9, 16.
  • the person skilled in the art will appreciate that the actual configuration of the airplane equipment 1 b depends on installation restrictions given by the airplane construction.
  • the data exchanged between the ground-based base station 2 and the mobile airplane transceiver unit 11 consists of multiplexed data for the passenger terminals 13a-c inside the airplane 8a and of signaling both related to the passenger terminals 13a-c and to the airplane transceiver unit 11.
  • the key point here is that the data carried on the ground-to-air and air-to-ground links is a multiplex of the data for the individual users (passengers) inside the airplane 8a, i.e. inside the airplane 8a, the data has to be distributed to the passenger terminals 13a-c.
  • the wireless distribution system 12 inside the airplane 8a should be compatible to at least one commonly used wireless system standard such as GSM, UMTS or LTE.
  • GSM Global System for Mobile communications
  • UMTS Universal Mobile Subscriber Identity
  • LTE Long Term Evolution
  • the service provisioning inside the airplane 8a is thus achieved by the use of the airborne base station 15 creating a pico cell C3 inside the aircraft 8a.
  • the inside- airplane wireless communication system 12 may be devised as a non-cellular wireless communication system transmitting and receiving in a potentially unlicensed spectrum, in particular a WLAN system.
  • broadband services may be offered to the passengers by means of airplane-operator owned terminals installed inside the airplane 8a. Such terminals may for example be integrated into the airplane seats as part of the airplane entertainment system.
  • the mobile terminals instead of using a pico-cell airborne base station 15 in the airplane 8a and performing multiplexing / demultiplexing of user data, the mobile terminals
  • 13a-c may be directly connected to the ground-based base station-based macro cell C1 via a relay station 15, being used instead of the base station of the airplane equipment 1 b shown in Fig. 2.
  • a relay station 15 is used instead of the base station of the airplane equipment 1 b shown in Fig. 2.
  • one hop is going from the ground-based base station 2 to the relay antenna 9 outside of the conductive hull 17, a wired connection being provided for transmitting the data into the conductive hull 17, another hop being provided by the antenna 16 inside the conductive hull 17 to the terminals 13a-c and vice versa.
  • the relay station 15 also uses signal-processing techniques in order to improve the signal quality, as standard terminals might not be able to cope with high Doppler frequencies, stemming from velocities of e.g. 900 km/h.
  • the inside-airplane wireless communication system 12 may be adapted to use airplane movement data, preferably provided by a GPS receiver 18 or by a navigation system of the airplane 8a.
  • the airplane equipment 1 b may be adapted to use the airplane movement data such as course, speed, etc., e.g. in order to calculate the Doppler frequency.
  • the airplane movement data may also transmitted to the ground-based wireless communication system 1 a using the air-to-ground link.
  • the airplane movement data thus provided may also be used for the following tasks: signal processing, e.g. Doppler compensation either at the transmitter or receiver (both in the ground-to-air and in the air-to-ground link); two- dimensional beamforming and tracking of the ground base stations (air-to- ground link) or the airplanes (ground-to-air link), and also for implementing handover mechanisms.
  • signal processing e.g. Doppler compensation either at the transmitter or receiver (both in the ground-to-air and in the air-to-ground link); two- dimensional beamforming and tracking of the ground base stations (air-to- ground link) or the airplanes (ground-to-air link), and also for implementing handover mechanisms.
  • the in-flight broadband mobile communication services as described herein are not limited to high-speed internet access, voice and messaging, but may also encompass security applications, such as cabin video surveillance, real-time exchange of flight and airplane data, e.g. for forming a ground-based "black box", and logistic applications, e.g. monitoring of freight, monitoring of passenger luggage ("lost luggage tracking").
  • security applications such as cabin video surveillance, real-time exchange of flight and airplane data, e.g. for forming a ground-based "black box”, and logistic applications, e.g. monitoring of freight, monitoring of passenger luggage ("lost luggage tracking").
  • airplanes equipped with the broadband link to the ground-based network may also be used as a sensor network, e.g. providing metrological data to the ground-based wireless cellular communication system 1 a.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Meter Arrangements (AREA)

Abstract

L'invention porte sur un système de communication cellulaire sans fil au sol (1a) pour fournir des services de communication mobile à large bande en vol, comprenant : au moins une station de base au sol (2) conçue pour générer au moins une cellule (C1, C2) définissant un angle solide de l'espace entourant la station de base (2), la station de base au sol (2) comprenant en outre au moins un réseau d'antennes (5a, 5a) utilisant une formation de faisceau bidimensionnelle pour générer au moins un faisceau (6a-c, 7a-c) afin de desservir au moins un avion (8a-c, 8c-e) dans l'espace couvert par la ou les cellules (C1, C2) en utilisant un accès multiple par répartition spatiale (SDMA). L'invention porte également sur un équipement d'avion permettant de fournir des services de communication mobile à large bande en vol, comprenant : au moins une antenne pour un échange de données d'utilisateur avec le système de communication cellulaire sans fil au sol (1a), une unité d'émission-réception connectée à la ou aux antennes pour gérer la communication air-sol et sol-air avec le système de communication cellulaire sans fil au sol (1a), et un système de communication intérieur à l'avion pour distribuer les données d'utilisateur vers et depuis des terminaux à l'intérieur de l'avion.
PCT/EP2009/059465 2008-09-04 2009-07-23 Systèmes et procédé pour fournir des services de communication mobile à large bande en vol WO2010025997A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US13/002,185 US8848605B2 (en) 2008-09-04 2009-07-23 Systems and method for providing in-flight broadband mobile communication services
JP2011525484A JP2012502527A (ja) 2008-09-04 2009-07-23 機内ブロードバンド移動体通信サービスを提供するためのシステムおよび方法
BRPI0913905A BRPI0913905A2 (pt) 2008-09-04 2009-07-23 sistema e método para fornecer serviços de comunicação móvel de banda larga em voo
CN200980125521.7A CN102077490B (zh) 2008-09-04 2009-07-23 用于提供飞行中宽带移动通信服务的系统和方法

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
EP08290831.0 2008-09-04
EP08290831 2008-09-04
EP08291050.6 2008-11-10
EP08291050 2008-11-10
EP09290443.2 2009-06-12
EP09290443A EP2161855B1 (fr) 2008-09-04 2009-06-12 Systèmes et procédé pour fournir en vol des services de communication mobiles à large bande

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PCT/EP2009/059463 WO2010025996A1 (fr) 2008-09-04 2009-07-23 Architecture de système pour fournir des communications dans un réseau de communication sans fil
PCT/EP2009/059465 WO2010025997A1 (fr) 2008-09-04 2009-07-23 Systèmes et procédé pour fournir des services de communication mobile à large bande en vol

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PCT/EP2009/059463 WO2010025996A1 (fr) 2008-09-04 2009-07-23 Architecture de système pour fournir des communications dans un réseau de communication sans fil

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US (2) US9350442B2 (fr)
EP (2) EP2161855B1 (fr)
JP (2) JP2012502527A (fr)
KR (2) KR101263223B1 (fr)
CN (2) CN102077490B (fr)
AT (2) ATE494674T1 (fr)
BR (1) BRPI0913905A2 (fr)
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US20110182230A1 (en) 2011-07-28
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ATE494674T1 (de) 2011-01-15
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US20120281672A1 (en) 2012-11-08
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CN102204120B (zh) 2014-07-02
DE602009000531D1 (de) 2011-02-17
EP2161854A3 (fr) 2010-06-16
US8848605B2 (en) 2014-09-30
EP2161855B1 (fr) 2011-01-05
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KR101174727B1 (ko) 2012-08-17
CN102077490A (zh) 2011-05-25

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